lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

USB: introduce unmap_urb_setup_for_dma()

Browse Source 
Split unmap_urb_for_dma() to allow just the setup buffer
to be unmapped. This allows HCDs to use PIO for the setup
buffer if it is not suitable for DMA.

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Martin Fuzzey
2010-10-01 00:21:55 +02:00
committed by Greg Kroah-Hartman
parent 7a7e789642
commit 1dae423dd9
2 changed files with 14 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/usb/hcd.h
View File

@@ -329,6 +329,7 @@ extern int usb_hcd_submit_urb(struct urb *urb, gfp_t mem_flags);
extern int usb_hcd_unlink_urb(struct urb *urb, int status);
extern void usb_hcd_giveback_urb(struct usb_hcd *hcd, struct urb *urb,
int status);
extern void unmap_urb_setup_for_dma(struct usb_hcd *, struct urb *);
extern void unmap_urb_for_dma(struct usb_hcd *, struct urb *);
extern void usb_hcd_flush_endpoint(struct usb_device *udev,
struct usb_host_endpoint *ep);